Model Number: W10110850A
Brand: Whirlpool
Age: 6-10 years

I have a Whirlpool Duet Dryer. I'm blowing thermal fuses. Vent is lent free to roof and fuse even blows when vent line removed. Checked continuity of thermistor, thermostats and coil all good. Just noticed that coil is glowing when in air dry only mode. Didn't get any error codes. Anyone have a idea what could be the problem, I don't just want to blindly swapping parts. Thank You in Advance!